user
List common signs of a virus infection.
assistant

Common signs of a virus infection include: 
- Sluggish or sluggishness of the device
- Unexpected shut down or restart of the device
- Strange or unexpected error messages
- Slower than usual internet connection
- Unusual activities such as elevated internet traffic
- Unusual pop-up windows
- New programs that have been installed without the user's knowledge
- Reduced storage space
- Unresponsiveness of the device
- Change in the browser settings
- Change in the home page
- Artifacts and odd files in the system